In 1935, at an astonishing altitude of 72,395 feet, Albert Stevens captured the very first photograph showing the boundary between the troposphere and the stratosphere. This incredible moment happened during the *Explorer II* balloon flight above the South Dakota prairie, setting a record for human ascent at the time. 🚀
While many flat earthers claim our planet is flat, they often base their beliefs on limited perspectives from just 20,000 feet—far too low to see the curvature. The reality is that the Earth’s curve becomes distinctly visible only at altitudes above 35,000 feet. Stevens’ monumental flight provided undeniable proof of our planet’s roundness, debunking those flat Earth theories once and for all! 🔍🌌The photograph taken during the flight showcased a clear horizon that curved downward.
This groundbreaking image not only marked a milestone in photography but also laid the groundwork for future high-altitude and space photography, providing clearer illustrations of Earth’s curvature that we rely on today. 🌟🛰️
Are you ready to dive into the evidence that reshaped our understanding of the planet? Join me as we explore this iconic moment in history and celebrate the wonders of science!
© National Geographic Society
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